This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
549481Full Citation: 'Fish-Eye' Camera View of the United States-Canada Boundary Line on Rainbow Bridge, which Spans the Niagara River Just Below the Falls. The Bridge Joins New York State and the Province of Ontario; 5/1973; Records of the Environmental Protection Agency, Record Group 412. [Online Version, https://www.docsteach.org/documents/document/fisheye-camera-view-of-the-united-statescanada-boundary-line-on-rainbow-bridge-which-spans-the-niagara-river-just-below-the-falls-the-bridge-joins-new-york-state-and-the-province-of-ontario, April 28, 2024]